Home / 1,276,782.45-1,761,972.04-703,843.12

Finding the Fourth Proportional to 1,276,782.45, 1,761,972.04 and 703,843.12

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Solution

The fourth proportional to 1,276,782.45, 1,761,972.04 and 703,843.12 is: 971,310.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,782.45 : 1,761,972.04 = 703,843.12 : x
  2. Step 2: Convert to fraction form
    1,276,782.45/1,761,972.04 = 703,843.12/x
  3. Step 3: Cross multiply
    1,276,782.45x = 1,761,972.04 × 703,843.12
  4. Step 4: Simplify right side
    1,276,782.45x = 1,240,151,901,068.63
  5. Step 5: Solve for x
    x = 1,240,151,901,068.63/1,276,782.45
  6. Step 6: Final answer
    x = 971,310.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.